High-speed performance at
megapixel resolution: flexible 3D imaging using the triangulation techniqueAbout the C4-2040-GigE
Acquiring height profiles and height images by means of laser sheet-of-light
(triangulation) technique, a laser line is projected on the object, the
resulting sensor image being evaluated by the camera core and converted
into a single height profile By scanning the laser line over the object,
a complete height image of the object can be acquired.

The camera's ability to complete the 3D calculations inside the camera
enables it to acquire up to 32 000 profiles per second. For maximum flexibility,
three profile algorithms are included without the choice of the profile
influencing the profile speed. This results that the profile date are
always output at the same maximum speed. Also, the 3D sensor uses a global
shutter and exposes all pixels at the same time leaving to very sharp
and clear images. The camera supports HDR-3D technology which enables
the readout of the sensor with Multi-Slope and Multi-Frame
Readout enabling the camera to reach a dynamic of up to 90db, scanning
even materials and surfaces with inhomogeneous reflectivity properties.

The C4 sensor is capable of delivering position data as well as additional
features (eg intensity, line width) without sacrificing profile speed.
An additional feature of the camera is that up to four sensor AOIs can
be designed for dividing the sensor in separate subwindows.

Another key attribute for fast 3D-measuring is the high light-sensitivity
of the sensors and their enhanced sensitivity in the NIR spectrum.

The camera has a Gigabit-ethernet Interface (GigE Vision-compliant) and,
in combination with the GenICam protocol, the efforts required for its
integration are reduced to a minimum. The configuration is done in a very
fast and simple way via Plug-and-play and the camera is accessed using
standard interfaces making the use of manufacturer-specific software libraries
is no longer necessary.